xp problems

last night i had a power surge and now my comp is misbehaving itself,i had to do a restore in safe mode becouse it no longer booted up.after many atempts at this i finaly got it to boot normally,problem now is it it running sluggish,and programs dont termiate normally.decided to do a defrag but this no longer works it says unable to launch service any ideas.xp-pro,i cant do sfc has i dont have my xp disk to hand.